Toy building element



FIG. 1 is a side perspective view of the toy building element showing our new design;

FIG. 2 is a front elevational view thereof, the rear side being identical;

FIG. 3 is a left side elevational view thereof, the right side being identical; and,

FIG. 4 is a top plan view thereof, the bottom plan view being identical. 

The ornamental design for a toy building element, as shown and described. 